Gray insists any highlights from his remarkable rookie season - he made all of 12 major league appearances and 10 starts - mean nothing now as he prepares to take the ball for the two-time defending AL West champion Oakland Athletics on opening day at home Monday night against Cleveland.

After Jarrod Parker was lost to season-ending Tommy John elbow surgery late in spring training, Gray assumed the top spot in the rotation.

Justin Masterson will make his third straight opening day start for the Indians, but perhaps his last.

“I’m really honored to get the opportunity, but at the same time I’ll go out with high expectations,” Gray said. “It’ll be a really fun day.”

Gray will be leaving his share of tickets, too: for his grandma, aunt and uncle, a cousin, mom and stepdad, girlfriend and two buddies from back home in Tennessee.

“For most of them it’s their first time in Oakland,” Gray said.

Justin Masterson will make his third straight opening day start for the Indians, but perhaps his last.

Masterson avoided arbitration and agreed to a $9,762,500 salary for 2014, but can become a free agent after the season. The sides never reached a new multi-year deal during the offseason ad cut off talks for now.

“Yeah, this is the third time I’ve been able to do this and I take ownership of it every time,” said Masterson, who won a career-high 14 games last year. “I’ve been trying to lead this staff for more than just the last couple years. This just kind of solidifies that position to be able to go out and be the leader, set the tone and no matter what happens, set a good example.”

The grounds crew will be hopping, as it could be a long day given the forecast for steady rain. Wet weather already canceled the finale of Oakland’s preseason Bay Bridge Series against the San Francisco Giants on Saturday.

Gray has shown he is unfazed by anything - the weather, facing Verlander, the big October stage.

“He’s a very driven guy, takes nothing for granted. If he has a good start he wants to go out and improve upon that,” manager Bob Melvin said. “You watch his bullpen, there’s a lot of intensity to that. He’s not a guy you have to motivate because he’s very motivated, and that makes my job and Curt’s (Young) job very easy. He’s always been a guy that’s been basically a No. 1 guy wherever he’s pitched, so he’s not foreign to that even though we’re not putting that pressure on him to have to be a No. 1.”

Gray’s teammates learned what a clutch pitcher he can be last fall.

At first, reliever Sean Doolittle figured Gray didn’t understand the magnitude of responsibility in the big leagues - but quickly changed that tune.

“Even though he’s young, in a very short amount of time he’s shown an incredible amount of maturity and poise,” Doolittle said. “He obviously appreciates this opportunity. He doesn’t act like he’s 24, especially when he’s doing his work or he’s out on the mound. He gets in tough situations and he doesn’t panic.”

Gray insists he hasn’t thought about that sensational night matching zeros with Verlander in Game 2 of the division series. They faced off again in Game 5, and the Tigers ended Oakland’s season for the second straight year.

Gray went 5-3 with a 2.67 ERA in his short big league stint after making his major league debut on July 10.

“There’s a lot of momentum coming off of last year but obviously it’s a new year, and it’s a new year for everyone,” Gray said. “Coming Monday, we’ll be 0-0 and it’s the start to a long season. We really just want to get started on a good note and hopefully we’ll finish the same way.”